Paper feeding device



Oct. 28, 1952 A. w. MILLS ET AL 2,615,551

PAPER FEEDING DEVICE Original Filed Aug. 9. 1945 9 Sheets-Sheet, 1

IN ENTORS A) ILLS- F54! mam/v BY EIdPAEENDA Oct. 28, 1952 A. w. MILLS ET AL 2,615,551

PAPER FEEDING-DEVICE Original Filed Aug. 9, 1945 9 Sheets-Sheet 2 l N VE NTO R5 4- IKM/Ll. 5

Oct. 28, 19 A. w. MILLS ET AL 5 PAPER FEEDING DEVICE Original Filed Aug. 9, 1945 9 Sheets-Sheet 5 INVENTOR 5 AJMM/LL 5 E d- RAEENM BY F. J. FUR VAN Oct. 28, 1952 A. w. MILLS ET AL 2,615,551

PAPER FEEDING DEVICE Original Filed Aug. 9, 1945 s Sheets-Sheet 4 FIG. 4

1952 Aw. MILLS ET AL 2,

PAPER FEEDING DEVICE Original Filed Aug. 9, 1945 9 Sheets-Sheet 5 INVENTOR5 I. ILL: E l URm/V BY E J ABE/V04 ATTORNEY Qct. 28, 1952' w. MHPLS ET AL 2,615,551

PAPER FEEDING DEVICE Original Filed Aug. 9, 1945 e Sheets-Sheet 6 WMY Oct. 28, 1952 A. w. MILLS ETAL PAPER FEEDING DEVICE S Sheets-Sheet 7 Original Filed Aug. 9, 1945 2 ATTORNEY lHl m m-u 061. 28, 1952 w, MIL S ETA'L 2,515,551

PAPER FEEDING DEV ICE Original Filed Aug. 9, 1945 S Sheets-Sheet 8 s 1 Ed. FUR/741V BY 5.1 EASE/V014 ak n W ATTORNEY 5 a Mm M 5 h 1 E T 11 S aka T 2 e 4 V m 5 W 9 A W MILLS ET AL PAPER FEEDING DEVICE 4/7 rap SAM! 4/8 FIG."

Oct. 28, 1952 Original Filed Aug. 9, 1945 Patented' Oct. 28 1 952 wan PAT PAPER FEEDING DEVILE V I Albert W. Mills, Point Pleasant, N. J., and Frank 1 1 J. Furman, Endicott, and Edward J. Rabenda,

1 e v 1 'Poughkeepsie, N. Y., assignors to International Business Machines Corporation, N. Y., a corporation of New York New York,

Original application August 9, 1945, Serial No.

609,854, now Patent No..2,531,885, dated November 28, 1950. Divided and'this application March 11, 1950, Serial No.- ;149,163 1 application'is a division of our co-pend November 28, 1950.

. ..This invention relates generally to record sheet I feeding devices and more specifically to means for positioning a continuous sheet of 1 forms under control of a perfor'atedtape. j An object of the invention is to provide perforated tape feed controls operable in synchro nism with a, motor driven feeding platen for controlling record strip advancement to receive printed heading and detail lines of print in pre-' arranged positions on bill forms or other accounting records. v

'Heretofore the feeding of a continuous record stripdivided into forms .hasbeen controlled by mechanisms wherein the places for difierent headings, body sections, predetermined total line s, overflow lines, etc. have been preselected byadjus'tment of levers and contacts set at differential'jpoin'ts with relation tov mechanism movable in synchronism with the advancement of the record sheet. Tho'seprior .art mechanical controls haveilimitations 'because in, trying to achieve complete flexibility cf control a large number of such control levers must be sup'erim posed and made effective over a wide range of adjustment. The disadvantages mentioned are avoided in the present instance'through the use of aperforated feed control'tape. This tape has aplurality of punch column positions in which any, one of a numerous variety of arrangements may be preselected. Cooperating with the tape is a plurality of sensing brushes, certain of which are allotted to control stoppage of the platen movement in various heading line positions. Others are provided to controlthe location of the sheet in various positions along the body of the formto receive detail lines. Another brush is allotted to cooperate with a perforation situated so as to control the line on which the predeterminedtotal is to be printed.

Another objector the invention is the provision of improved line spacing controls having optional selection of single, double or triple spacing; or disabling of such controls'and selection of variable line spacing control under control of perforations in the tape. I

out inthe following description and claims and illustratedin the accompanying drawings,,which disclose; byway of example, the principle'ofthe invention and theQbest mode, which'has b'een contemplated, of applying that principle.

In the drawings:* 7

Fig. 1 is a perspective view showing-the record feeding controlmechanism attached vto the right end of the platen. I

Fig. 2 is a sectional elevation view showing driving connections for the 'sheet" feeding devices' V Fig. 3 is a sectional plan'view showing thedriving connections to a pair of clutches for govern-Q ingthe advancement of the record sheet at low and high. speeds. g Y v [Fig.4 isa plan view showing the entire tape control mechanism and the driving extension on the platen shaft. i

v Fig. 5 is a detail sectional elevation view showingthe clutch selection con'trols.

Fig; 5a is'a side elevation View of the manipulative control for disconnecting the platen from the tape feed control mechanism.

Fig. 6 is aperspective view showing the mechanismior selecting one or the other of the two sheet advancing clutches. i v

Fig. '7 is a detail 'view showing the contact operatinglevers cooperatingwith a pair of circuit breakers. H

Fig.18 .is a side elevation view of theperforated tape controls with the cooperating brush holder partly in section.

Fig. 9 is a sectional view along plane 9-9 of Fig. 8, showing the driving connections'between the platen, the driving clutches and the pin wheel for advancing the control tape.

' Fig. 10 is a front elevation View showing the platen extension shaft and the control panel supporting the manipulative elements for regulating" the tape control, line spacing and restoration of the control.. I

Fig. 11 is a portion of the wiring diagram oi the machine.

Referring to Fig. 1, a tape control mechanism is shown in a general way as it appears attached near the right end of the platen P. Wrapped around the platen is a record sheet R before which the type bars T are raised into the printing positions. At the right end of the platen P, the shaft extends under the tape control casing C and ends with a pair of knobs K and K, the former having direct connections to the platen and the latter having gear connections arranged so that a Vernier adjustment may be made to regulate the location of the printing line. Extending from the top of the casing C is a panel M holding the five manipulative controls for regulating the record sheet advancement. A. knob L controls the line space movements for different extents of feed and for selective line spacthe platen.

The three keys extending across, the top of the panel M are provided to" control the opera:-

tion of the tape feeding unit. The S key at the left is used to space the tape to'bring it into a controlling position under manipulative.=control..

The central key RE is a restoring control for" governing the movement of the perforated tape to bring it around into initial position. This corresponds with a prearranged normal position of the record form R, so that both the record and the. tape are ready to be moved in synchronism. A key ST at the right is used for stopping. the operation of the tape control mechanism. whenever desired.

The mechanism case C is provided withadoor DR which is used to conceal the part of the mechanism receiving the perforated tape. A pair of. contacts DC (Figure 11) is provided in. cooperation with this door DR, so .that the driving motorv M (Figure 11) is .deenergized whenever the door is opened.

The feeding controls are illustrated in coordination. with a record controlled alphabet printing tabulator. The printing machine, is of. the kind shownin Patents Nos. 2,079,418 and 2,111,- 122, wherein mechanisms are shown .for. feeding record cardsone by one and analyzing the cards electrically to control the setting. of type bars and the accumulation of amounts and total printing of such amounts.

The feeding control unit'is hung on the right side frame of the main machine. InFig. 9 his seen that this main rightside frame I2 carries a ball bearing I3 for supporting a shoulder of a clutch disk I4 fastenedto the right end of the platen shaft. The diskis formed with a number of extensions I5 for providing clutch connections between the removable feeding unit and the stationary but rotatableplaten mounting.

The feeding controls are supported inthe main between a pair of side frames I1 and I8, the former being fastened. against the outside of the right machine frame I2, and the latter suspended further to theright to carry a platen shaft extension and a tape pin feedwheel; Be.- tween the two unit side frames. are a number of cross bars tying them together and'providing supports for. various parts of the control mechanism.

In Fig. 2 it is seen that a heavy vertical casting I9 is located near the rear of the unit and serves as a tie between the side frames. At the top of the mechanism another tie in the form of plate 22 is secured between the twoframes. Near the center of the mechanism, a cross bar 23 serves to tie the two frames I! and I8' together. A front tie plate 24 also'extendsacross the upper center of thefeed unit.

In Figs. 2 and 3 it is seen that the heavy bracing frame I! is formed with a pair of cars 20 and 2I for guiding the main drive connections. A motor M (Fig. 2) is fastened to the outer frame I8 in a vertical position and the upper end of its shaft is attached to a flexible coupling 25. This coupling is engaged with a clutch disk 25 fastened to the lower end of a drive shaft 21. Cooperating With shaft 21 is a set of three bearings, one'bear-ing 28=being located in the upper ear 20 and the two lower bearings 51' and" 58 being mounted in the lower ear 2I, the former being a thrust bearing to take up the pressure provided by the driving worm 59 fastened near the upper end of shaft 21. The motor M and the con- .-nected. worm drive. mechanism is operated continuously and. the drive connections therefrom to theclutches' are available for instantaneous operation; which is terminated only by operation of a stop key ST, Fig. 1, or opening of the feed mechanism door. DR: to change the feed control tape.

Reference to Fig: 3 reveals that the vertical worm-.59 is in mesh with a worm wheel 60 fastenedalong with a gear BI to a hub 62 attached to a horizontal drive shaft 63. This shaft not only carries the high. speed control gear. 6I but also has attached'thereto a smaller gear 64 for driving connection toa clutch for lowv speed operation. Apair of balLbearings 65 and 66 are mounted in frames I1 and I8. respectively for guiding the ends of the shaft 63' Meshing with gears BI and 64 are a pair of gears 61 and 68 freely mounted on a clutch shaft 69. The gear 68 is thelarger of 'the: twottoicooperate with the small driving, gear 64 for low speed operation. Each ofthe gears 61 and 68 isprovided with a-pa'ir of ball bearings;.such asloosely on a cylindrical shoulder 95' extending from the hub of gear 68. Although this clutch disk 94 is loosely arranged on the end of: the gear, it is held against the gear by aspider spring 96 fastened to the shoulder and having spring fingers pressing disk Slagainstthe side of the gear hub. Disk 94 is' formed with an annular ring of driving teeth 9.! normally separated from matching teeth on a. clutch shroud 98 and a driving ring 99 fastened to a driven gear" I00 also. loosely mounted on shaft 69'andsupported' thereon by a bearing. IOI. Gear I00 is normally held from rotation by a lockingdisk to be tiescribed hereinafter, and the drivingconnection is. establishedby tipping disk 94 withreferenceto gear 68. When the upper end of disk 94 is tilted or tipped as already mentioned, the-spider spring yields in that particular direction and the teeth on the opposing clutch members mesh to provide a driving connection.

The other gear 61 is also provided with a clutch driving disk I03 and a driven disk- I04 attached to a gear I05. Since theconstructional details of both clutches are similar, it is-unnecessary to mention the details of the" clutch at the right.

Cooperating with gears I00 and: I05 are a pair of intermediate gearsIO'I and I08 (Fig; 9) mounted with a locking disk. I09 ona shaft I I0"which passes through bearings-in both sidefiames. and

extends beyond the outer side frame I8Qandthere supports the tape driving drum.

The two clutches shown in Fig. Bare used for 5, different kinds of control in advancing the record sheet. The low speed clutch including driving disk 94 is used most of the time and is called into operation for line spacing and overflow skipping. The other clutch including disk I03 shown at the right and comprising high speed gearing is called into operation as an incident to the printing of totals. A pair of magnets is used to operate camming mechanism for closing one or the other of the two clutches. But, before describing the details of the means for operating the clutches, it is believed best to follow the driving connections from the clutches to the platen.

It is already mentioned that a locking disk. I09 (Figs. 2 and 9) is mounted on shaft H and situated between the two intermediate drive gears I01 and I08. This locking disk is fastened to the gear I08 by means of a series of set screws such as the screw III.

The platen shaft extension The driving connections are not direct from the clutches to the platen shaft. Instead, a

platen shaft extension is provided to carry adjustment and Vernier regulating knobs as platen controls removable along with the entire feed control unit. Not only is the entire platen extension. removable, but within the unit is a clutch connection making it possible to disconnect the tape feed control so that the sheet feeding-operation may revert directly to the ordinary tabulating line space and total space regulating devices.

Referring to Fig. 9, it is seen that the extension shaft H3 extends to the right of the platen clutch I4 and is supported by bearing arrangements in the two feed unit frames I1 and I8. The

left end of extension shaft H3 is supported by the ball bearing H4 centered in an annular ring or collar H5 fastened in a circular opening near the bottom of the frame I1. The middle of shaft H3 is supported by another ball bearing I20 fixed in a hollow bearing cup I2I fastened to the outer side of frame I8. Fixed to the left end of shaft H3 is a coupling disk I22 shaped with an annular flange which embraces the periphery of the locking disk I4 fastened to the stationary platen shaft. Coupling I22 is shaped with notches to coincide with the extensions I5 formed on the clutch member I4, thereby providing a driving connection between the stationary part of platen and the removable unit with extension shaft II3.

At the right end of extension shaft H3 is fastened the platen adjustment knob I23 formed t with a metallic center I24 carrying a set screw I35 for securing the knob to the shaft. This knurled knob I23 is used for line space adjustment of the platen and long feed movement in graduations greater than line space movements. Alongside knob I23 is another knurled knob I36 provided to regulate adjustments to a fine degree through a Vernier mechanism which is used to select the exact location of printed matter with respect to definite recording spaces on the record forms; A motion of Vernier knob I36 is not communicated directly to the extension shaft butrpasses through bevel gearing, making possible a relatively fine movement of the shaft for a comparatively large movement of the knob.

The inside of vernier knob I33 is threaded to provide means for connecting it to the threaded shoulder I31 formed on the cup-shaped driving member I38 loosely mounted on shaft H3..

Member I38 is formed with a pair of flanges or annular rings between which is loosely pivoted'a bevel pinion I42. Member I38 is formed on the threaded side with an annular groove in which there is pressed a coil spring I43 tending-to hold the bevel pinion in operation. As a means for backing up the spring I43, a collar I44 is fastened to shaft H3 by a set screw.

Cooperating with bevel pinion I42 is a pair of bevel gears I and I5I, the former being pinned directly to shaft H3 by pin I52 and the latter attached to the inside of the cup-shaped shroud I53. Also attached to the shroud I53 and located on the outer surface thereof is a driving pin holder I55 carrying a pin I56 through whichthe driving force from the clutches mentioned hereinbefore is communicated to the platen.) Pin I58 projects into an opening formed inthe wall of a sliding bushing I51 threaded on one end of a long sleeve I58 carrying a clutch disk I59 cooperating with another clutch disk I60 fastened to the side of a unitary arrangement ofa pair of gears I8I and I62 meshing withjthe intermediate gears I01-and I08 already-described. It will be remembered that gears I01 and I08 communicate the driving action from the low speed and high speed feed control clutches. The operation of driving from either feed clutch is communicated down to the gears IBI and IE2 andffrom that point on it is optional whether the drive is to be communicated to the platen, depending on the axial position of the sleeve I58 to engage or disengage clutch I59, I60.

Returning again to the explanation of how the Vernier knob operates through the bevel gear, it is noted that when the sliding connection comprising pin I59 is fixed because of connection to the feed controlclutches, then the outer bevel gear I5! is fixed relative to the inner bevel gear I50 which is fastened to the platen extension. With the outer gear fixed and the pinion rotated in a planetary fashion about the shaft center, then the inner gear with a smaller number of teeth is advanced slightly relative to the fixed parts and a fine adjustment of the platen is made possible.

When the driving action comes through the clutch sleeve I58 from the feed control clutches,

then the outer bevel gear I5I becomes the driver and the bevel pinion I42 merely serves as a connection to the inner bevel gear I50 which connects directly to the extension shaft H3 and the platen P. I

Returning'to consideration of the drive from the feed control clutches, it is noted that the gear unit comprising gears I6I and I62 is fixed to a bushing I64 loosely mounted on shaft H3. The bushing is confined between a'pair of fixed collars I35 and I86, the former taking up the thrust produced when the clutch connection I59, I60 is established. The stationary'part of the clutch connection is the ring I50 fastened to the side of gear I62 and providedwith a series of teeth I61 extending toward the 'teeth I68 formed on the side of the clutch disk I59 fastened to a flange on sleeve I 58 by a seriesv of rivets I59, At the right end of sleeve I58, the driving bush ing I 51 is attached to the sleeve by being screwed on the threads of a reduced extension I10. v

The position of the connecting sleeve I58 is regulated by a manipulative control ending in an arm I12 having an extension fitted in a circular groove I13 between a pair of flanges formed on sleeve I58. However, before considering all (le tails of the manipulative control, it is believed bestv toconsider first. the means. for controlling the-low speed and high speed clutches and effecting the drivingmotions already described.

' Referring to Figs. 2-,. 5 and 6, it is seen that a pairof'magnets HS and LS control a set of camming mechanisms for operating one or the other of the two clutches. If magnet LS (Fig. 2 is opearted alone, it is a sign that the low speed clutch is to be operated to drive the platen connections to advance the record sheet for line spacing. or overflow movements. When the other smaller magnet HS. is energized slightly before the magnet LS, it is anindication that the connections are to be varied so that the high speed clutch is closed to advance the platen and the record sheet as an incident to a total printing operation;

,In Fig.2 it is seen that the large magnet LS is; mounted on the cross plate 22 and that the other magnetI-IS is also mounted thereon directly above it.

Extending across the unit between the side frames [-1 and I8 is a shaft I which acts as a pivot for a locking lever I16 havinga hooked end I11 for cooperating with the teeth I18 formed around the periphery of the locking disk I09. Lever I16 not only serves to perform the function of keeping the drive gearing locked in a normal condition, but it is also formed with two other extending arms, one of Which carries the armature I19 located opposite the pole pieces of the low speed control magnet LS. The third arm I80 (Fig. 6) extends toward the rear of the machine and carries a cross bar IBI which is used tooperate the camming mechanism for throwing one or the other of the two clutches into an operated condition. Cross bar I8I does not act directly on the clutch shifting parts but instead it. works through a pair of interposer slides I82 and I83. In Fig. 6 it is seen that the left slide I82. is so shaped that the top surface thereon abuts against the under side of one end of bar I8I- while, on the other hand, the notch I84 in the other slide I83 is normally presented under the opposite end of bar I8I. Underlying the slides I82 and I83 are offset lugs I86 and I81, the former being part of an operating lever I88 for the" low speed clutch and the latter being formedon a lever I89 which is provided to cam the clutch for the high speed train of connections. Bothlevers I88 and I89 are loosely pivoted on shaft I15 and extend forwardly and have raised elbows I90, ISI for abutting against the front face of the armature piece I19. Apair of. springs I92 (Fig. 2) are connected between the extending ends of the levers and the cross bar 24. They tend to rock the levers I88'and I89 in a counterclockwise direction which is the opposite of the direction for producing a clutch closing motion. Extending upwardly from plate 24 is a pair of bolts I94, the heads of which serve as adjustable stops for extensions I95 formed on the front of the operating levers. In order to guide the front ends of the operating levers, the cross bar 24 is formed with notches for. confining dependent extensions I96 formed on the lower part of the front ends.

In Figs. 5 and 6, it is seen that the operating levers I88 and I89 are provided with outwardly extending studs I98 and I99 for carrying camming disks 200 and I. The cam disks are loose- 1y mounted. on. the studs for rotatable movement, but they are closely confined to prevent end play. Disk 200 (Fig. 5) is situated so that the slanted cam surface thereon cooperates with the outer rounded periphery of. the movable clutch disk-94 forming part of. the low speed drive. The other cam disk 20I mounted onlever I89 is somewhat similarly located with respect to the otherclutch connecting disk I03 which is part of the high speed drive. It is noted that the slanted cam surfaces of the two clutch disks face in opposite directions because the closing motion for the low speed clutch is toward. the right while the closing motion needed for operating the high speed clutch is toward the left.

Before pointing out how the parts are operated to engage one or the other clutches,'it is believed well to explain how the interposer slides I82 and I83 (Fig. 6) are shifted to set the mechanism in two different ways. In Fig. 6 it is seen that both arm 203 which is pivotally connected to slide I82 and arm 204 which is pivotally connected to slide I83, are slanted upward toward a common point and joined with an armature. lever 205 pivoted at 206 (Fig. 2). This pivot is provided on a bracket 201 attached to the vertical plate 22 already mentioned as one of the connecting parts between the frames.

Extending from plate 22 is an adjustable pin 208 which serves as a stop for the armature lever 205. Attached to lever 205 is a cross piece 209 serving as an armature in cooperation with the pole pieces of the interposer magnet HS which is operated for high speed purposes. A spring 2II tends to draw the lever 205 in a clockwise direction so that an extension '2I2 thereon abuts against a stop stud'2l3. When lever 205 is in the normal position, the slides I82 and I83 are located as shown in Fig. 6 with the first mentioned slide in position to be operated and the second slide presenting the notch I 84 which makes it free from operating control.

Extending from the left slide I82 is an insulated button 2I5 (Fig. 2) abutting against a flexible contact blade 2I6 forming one side of a pair of contacts 2I1. These contact blades are mounted between insulation blocks secured to the rear surface of cross plate 22. Attached to the bottom edge of the plate 22 is a notched comb 2I9 which acts as a guiding means and prevents side play of the interposer slides and the operating levers I88 and I89 which are formed with rearwardly extending portions.

Assuming that the parts are in the normal position and that the low speed magnet LS is the only one energized, then the armature I19 (Fig. 2) is attracted and the operating lever I16 is rocked in a clockwise direction until stopped by pin I85. This motion serves first to disengage the locking tooth I11 to permit free rotation of the gearing drive. At the same time the cross bar I8I (Fig. 6) is lowered and carries down before it the cooperating interposer slide I82 and this in turn depresses the lug I86 on the left hand operating lever I 88. Since this lever carries the camming disk 200, it operates to shift the clutch disk 94 (Fig. 5) toward the right and engage the low speed clutch with the constantly operating part of the gearing. In this way operation of the magnet LS alone causes advance of the record sheet as driven by the low speed gearing.

When lever I16 (Fig. 2) is rocked clockwise by energization of the magnet, it comes into contact with a leaf spring 220 fastened on bar 24. This spring tends to restore the lever to the normally disengaged position which is assumed when the magnet becomes deenergized. The hooked end I11 of lever- I16 is tapered to find its way between teeth H8 so that the stopping wheel l09 can be brought to a definite lockedposition. Cooperating with the opposite side of the locking disk is an overthrow preventer in the form of a blade 22! mounted on a spring 222 fastened to the rear of the cross bar 23. Upon the passage of each tooth I18 in a counterclockwise direction, blade 22! snaps'in behind the toothand prevents retrograde movement.

Assuming that the gearing is to be connected for high speed operation, then the interposer magnet HS (Fig. 2) is energized first and serves to rock lever 205 in a counterclockwise direction and shift the two slides I82, I83 (Fig. 6) so that the former presents a relieved portion under the left end of cross bar I8! and the latter is shifted rearwardly so that the notch I84 is carried away I81 and serves to rock lever I89 in a clockwise direction. Since this operating lever I89 is the one carrying camming disk 28! associated with the high speed disk I03 (Fig. 5), the high speed clutch is closed and the driving connections are established from the motor through the high.

speed drive to the platen.

As an incident to the shifting of the interposer slide #82 (l ig.2),-contacts 2|! are closed to provide circuit connections to call in magnet LS directly after energization of magnet 'HS as described'in detail hereinafter.

Provisions are made to advance the control tape TP (Figs. 8, 10, and 11) in synchronism with the movement of the record 'sheet'by means of gearing connections from the two clutches described hereinbefore. The point at which the two drives are connected is shown in Fig. 9, where it is seen that the intermediate gear shaft Hllextends to the right of the outer frame l8 and carries a tape feeding pin wheel. This wheel cooperates with the central line of feed perfora-' tions shown in the tape TP (Figs. 10 and 11). When the tape is formed in a continuous band, it is placed on the pin feed Wheel and aligned with the topof the record sheet and thereafter provides a controlmediumthrough ther'ectan gular perforations which are positioned with respect to places on the record sheet where recording is to bestarted.

Most of the perforations on the tape are concerned with stopping control for limiting the advancesof the record sheet after feeding has been started by X hole control, digit sensing, group change,v total recording, etc. However,

there is one control provided byi-the tape for.

initiating feeding rather than terminating feeding, and that is the overflow control for limiting the extent of printing near the bottom of the form, so that skipping takes'place tocarry the record sheet over into a position for continuing recording at the first item line on the second form. a Y

' Considering now the actual mechanical arrangement of the pin feed wheel, itis noted in Fig. Q'that a gear 224 is secured to shaft H0 by a set screw 225 which fastens it alongside the frame I8. Alongside gear 224 is fitted a sleeve 226 carrying an insulation hub 22! formed with a pair of flanges 228, 229. -Assembled on the insulation member 221 is a metallic drum 23! aftera series of them areassembled in the drum 231, an annular ring or washer 233 is inserted, I

under the bases of the series of pins and held there by a flanged ring 234 assembled against a central wall23-5 formed, on the inside of drum I p All of the feed wheel parts are assembled by meansof a series of stay rods or bolts 231 which project through insulation bushings 238 ins-gear 224 and are threaded in a retaining washer 239' placed alongside gear 224.. When' the bolts 231 are tightened, they not only drawtogether-the ring 234, drum 23l,- ins ulation member 221, gear;

224 andretainer 23.9,,but they alsoholdthewing'.

233 under the pins 232- so that the pins arev held. in the extendingposition.

Assembled between the two flanges 228 anid 2 2;9l is a molded insulation commutator ring, 24 I; co r1. taining a series ofmetallic contact spots 242,

electricallyconnected to drum'ZSI for controlling multiple line spacing- Some of the these spots 2; 42 are spaced at intervals co-extensive with the dou-y ble spacing of the record form'while other'spots; are-spaced at intervals coincidingwith the move- V ment of the record through-a space equivalent to three line spaces. The periphery of the metal-L lie drum 23I is a slip ring and serves as an electrical conductor both for impulses throughrthe,

brushes which cooperate-with the spots andfor impulses through the brushes which cooperate with the tape andsense'the perforations; therein to determine the location and timing of the feed control impulses. v In-the side elevation view Fig. 8, it is seen that while the left loop end of tape TB is drawn around pin feed drum23l, the right end or the tape is guided by a curved guide 244.; Theregare two other such guides245 and 2,46 fastened in asliding box 2 41 fastened to spacersextending from the frame [8. According to the length of the tape TP, one or the other of the three curved guidesis selected'to support theright end of the tape. Box 241 is formed with a longslot 248 which .rnakesgit possible to varythe horizontal position of the box and the guides contained therein with respectto asecuring-bolt 249, best.

shown in the seetionalvi ew, Figgg There it is seen that the frame I8 is formed with an extending boss 250 through which the bo1t-249 projects. The bolt-has an enlarged head,,25l which cooperates with the inside wallof box 241 alongside the slot 248 through which the bolt. projects. The washer 252 is also provided to en-v large the frictional area used to hold the box,inan adjusted position. On the'inner end ofbolt 249 is assembled a washer 253 and locking nutsi 254 for backingup acoil spring 255 assembled; around the bolt and seated, in a depressionformed Within boss 250. .In Fig.4 it is noted that all three guides 244, 245, and 246 are formed with a raised portion 256 for bridging over the bolt head 25l, so that the boxg241 is free :tobe; to the bolt from one end to;

moved with respect the other.-

The procedure o f-assembling the tape placement of the left end around the pin wheel and location of the feeding perforationsover. the

pins and then drawingv the, opposite end of the;1

tape around one of; the curved guides before drawing the boxv 24l..toward the right, (Fig. 8) sufliciently to draw the tapetaut'without 'stretch ing it. As a further means for guidingt'he move-.

The tape sensing brushes It is to be noted that provisions are made across the tape TP fOr twelve possible rectangular control perforation positions, as indicated in Fig. 11. These positions are evenly divided with six punch locations on each side of the circular pin feed openings 30 (Fig. ll). In Figs. 4 and 8, it is seen that a square'insulation bar 260 carries a series of fifteen brushesBI-BIS. The plan view, Fig. 4, shows that the-first six brushes Bl to B6 are located on the right and then there is a second group of six brushes B1 to BIZ in the center and a third group of threebrushes B13 to Bl at the left. The two groups of six brushes each are separated by the space required for the pin feed control. Two of-the three-brushes at the left, BM and Bl5, cooperate with the commutator 241 (Fig. 9) for controlling line spacing operation. Brush Bl3 is-a common contact brush cooperating with the metallic drum 23! outside the area of thetape, so that it is in continuous contact with the drum, as illustrated in Fig.11.

{is a means for confining the ends of the brushes B l to BI'5, a slotted insulation bar 26! (Fig. 8) is extended across the tape and has a fork -shaped front end with insulation projections interspersedbetween the brushes.

As best shown in Fig. 4, both insulation cross bars 260 and 26! are mounted in a rockable frame, so that the brushes may be lifted away from the tape when the tape is to be changed. The brush frame comprises a U-shaped member with a cross bar 262 and a pair of side pieces 263 and 264 between which the insulation bars arefi-xed. The entire brush unit is pivoted on a stud MSG-extending from the frame 18 and carrying a fixed collar 26'! forlocating the brush frame and another collar 268 for confining a spring 269 which cooperates with the brush frame (Fi 8) and tends to rock it in a clockwise direction.

In order to prevent sparking of the brushes at the tape and to properly time and limit the length of the impulses directed through the tape, a pair of circuit breakers are provided and geared to the pin feed drum to rotate in synchronism therewith. In Fig.8 it is seen that a small triangular frame 280 is secured at 28! and 282 to the outside of frame 18. Extendin outwardly on this small frame 280 is a stud 283 acting as a pivot for a gear 284 in mesh with the gear 224 already mentioned as secured to the pin feed drum 23!. Adjustably secured to the side of gear 284 is a pair of ratchet wheels 285, 286 formed with a series of arcuate slots 281, through which pass the adjustment screws 288 for fastening-the wheels -relative to each other and also with respect to the driven gear 284. The teeth of the two wheels are not aligned but instead are staggered relative to each other and the circuit closing and opening times are varied to permit the passage of the impulse carried from the sensing brushes.

Pivoted at 290 on the outside of frame 280 is a pair of contact operating levers 2% and 292 (Fig. 7). The former has a lug 293 cooperating with the teeth on ratchet wheel 285 and the lever extends ,rearwardly. to carry an insulation roller 23.4. underlying a pair of normally open contacts 12 295. A spring 291 (Fig. 8) tends to rock the lever in a clockwise direction and hold it incooperation with the circuit breaker wheel. As the wheel rotates in synchronism with the pin wheel upon the passage of a feed control perforation position, the lever is rocked upward by one of the teeth and the contacts 295 are closed after the presentation of a perforation.

In a similar fashion the other lever 292 is uperated by the circuit breaker wheel 286 to control the opening and closing of contacts 296 (Fig.

8) which are normally closed and provided with an upper blade extending over the insulation roller 294 attached to lever 292.

The control panel panel are the line space control lever L and the.

declutching lever D. The space key S-is provided for selecting hand operated line spacing control and also for advancing the record and the control tape in long feeding when it is desired to advance a record independent of the tape control. The restore key RE is provided .to close circuit connections for energizing the tape control magnets, so that the tape is advanced to the normal or home position, which is aligned so as to coincide with the presentation of the top of the record form at the printing lineon the platen. The stop key ST is provided to open circuit connections to disable the tape control motor when there is need for an emergency stop.

The line space control lever L is settable to one of four positions, the first three marking selection of .a succession of progressively greater line space movements for one, two or three steps.

The fourth p sition is one making the line space movement independent of any prearranged number of steps other than the degree of motion selected by the perforations cut in the CQH'? trol tape. In other words, this select 'line space control is tape control of line spacing.

Before describing the mode of operation of the declutching lever D, it may be noted that the panel 300 (Fig. 8) is supported at a'slight angle by a pair of brackets 30I, one of which is shown attached to the outer frame l0 and the other being similarly secured to the frame II.

In Fig. 50: it is shown that the lever D is provided with a projecting shaft 302 to which is secured an arm 303 having a hub cooperating with the inner surface of the panel 300. Extending from arm 303 is a stud 304 projecting in a notched opening in the end of a lever 305 secured to a slanted shaft 306 carried in bearings 30! and 308 formed on the bearing block i2] described earlier in this specification. Also seecured to shaft 30$.is a long hub 309 carrying a pair of bent arms I12 for engaging in the grooved section I13 (Fig. 9) formed on the clutching sleeve I58 already described.

It is noted from the position of the lever D (Fig. 10) that, when it is rocked counterclockwise to the in position, pin 304 (Fig. 5a) is lifted toward the observer and arms I72 are depressed and rocked in the direction observed as clockwise in Fig. 9. This movement tends to shove the sleeve I58 toward the left and engage the'clutch disk [-59 with the driving ring 160.

When lever D (Fig. is rocked clockwiseto the .out position, the train of connections is moved in the opposite direction and shaft 300 (Fig. 9) is rocked counterclockwise to push the sleeve I58 toward the right and disconnect the connections between the feed control clutches and the platen.

In order to maintain the position in which the declutching lever D is set (Fig. 10), a detenting device is provided. Attached to shaft 306 is an arm 3I0 formed with a pair of notchesQ Cooperating with the notched surfaces is a pointed detent 3I2 pivoted on a stud 3I3 extending from the side of the bearing frame I2 I. A spring 3I4 is connected to the detent and tends to rock it counterclockwise to hold the pointed end in engagement with the notched surface of arm 3I0 and thereby hold the declutching lever in one of the two possible selection positions.

The electrical controls As shown in the wiring diagram, Fig. 11, the magnet controls for the clutches are coordinated with the controls of the tape sensing devices and a printing tabulator. This is explained in detail inthe'parent case, Serial No. 609,854, filed on August 9, 1945 (now Patent No. 2,531,885, dated November 28, 1950), of which the present case is a division. For present purposes, it is suflicient to note the controls for the pair of clutches involving magnets HS and LS which govern spacing. It should also be mentioned that the contacts R34a and R34b are interlock relay contacts, and that contacts R3411 are disconnected and contacts R342) connected as soon as line 320 is energized by closing the main switch and the feed unit made effective. Also a tape restoration cycle, described hereinafter in detail, should be initiated by depressing the tape restoration key RE after the main switch is closed, in order to energize relay RM and close contacts R4Ia. Contacts R341) and R4 Ia are provided in the circuit of Fig. 11 in order to make the circuit shown inefiective during form skipping of the printing tabulator, as explained in detail in the parent case.

, Associated with motor M, Fig. 11, are the two clutchesdescribed hereinbefore, the one being controlled by the low speed magnet LS which is energized alone for line spacing and overflow skipping, and the other clutch is called in by magnet LS and the high speed interposer magnet HS which is energized to clutch other gearing to skip upon the printing of a total.

Also shown on Fig. 11 is a diagrammatic representation of the pin feed drum 23I holding the control tape TP with the commutator 24I extending to control line spacing in addition to the other spacing controls exercised by the feed control indicia in the tape in association with the fifteen sensing brushes BI to BIS.

Tape drum and commutator adjustment 1 The tape feed spacing key S, Fig. 11, may be used for properly setting the tape control commutator when setting the record feed devices for a new form under control of an inserted tape TR. If single line spacing is to be used, 1. c. with switch L set to l, the control tape may be set on the feeding pins without regard to the synchronism between the tape and the commutator. However, if the required line spacing is to be doubled or tripled, the switch L should be set to 2 or 3 and the brushes brought down'to bear onthe commutator and the'space key S de- Assuming that the triple space selectionis made, then when brush BI 5 encounters. the spot 242, the stopping circuit will be established as follows: from line 320, to wire 4 I 5, circuit breakers 295, 296, common brush BI3, the conductivedrum 23I, spot 242, brush BI5, switch'L, wire 420,, normally closed contacts R3212, the series of brush selection contacts RIZIlb to RI02 b, wire 42I,:-re-

lay contacts R4Ia (closed, as explained above), relay contacts R200, wire, 422, relay contacts RIQd, control relays HS4 and HSI, wire 4I6,.and line-32L Control relay HS41then operates to open contacts HS4a, in series with the clutch magnet LS to disable it and stop the rotation of the commutator with the control spot 242 just beyond the line of brushes. Then the brushes can be raised and the tape inserted, so that the restoration perforation is, just beyond the brush BI. 1

Interlock relay R46 is energized by relay RI9 to open contacts RAM and prevent the key contacts S from prolonging any feed operation. When contacts RI 9a. are closed by any feed selection operation of relay RI9, a circuit is set up through the pickup coil of relay R46. The circuit includes line 320, wires M5 and 4H, stop keypontacts ST, relay contacts RIOa,,Wire M I, coil R46, wire M6 and line 32L Relay R46 then opens contacts R46a to break the key operated feed circuit, and it also closes contacts R46 bto prepare a holding circuit should the feed space key beheld down. As long as feeding is in progress, contacts R46a are held open, and should the key contacts S be closed, the interlock circuit is held through wire M8 and contacts R461) until the key is released.

Once the tape is synchronized with the come mutator setting as already described, it can be brought around to the starting position by operation of the restoring key RE.

Tape restoration control There are times when the tape remains out of the normal starting position after recording has taken place under control of one batch of cards. Prior to the initiation of recording under control of another sequence of record cards, it is desirable to restore the tape to the normal starting position. To effect such control, the tape restoration key RE is depressed and a number of circuit connections are established for operating the clutch magnet LS to cause movement of the tape until the brush BI encounters the initial tape perfora-v tion It (Fig. 10) at the starting position.

The restoration circuit is established by the closure of key contacts RE, Fig. 11, and the connections include line 320, wires M5, M1, contacts RE, wire 424, the pickup coil of relay R20, and wire M6 to line 32I. Relay R20 then closes contacts R202) to set up a circuit through a pickup coil of relay RIB. Relay RIB then closes associated contacts RIQa to set up holding circuits for both relay RIB and R20 through the stop contacts ST. The holding circuit for relay RIB includes line 320, wires 4I5, 4I'I, stop contacts ST, relay contacts Rl9a, holding coil of relay RIB, relay contacts HSla and wire'4l6 to line 32 I. Through somewhat similar connections and closure of contacts Ra, the holding coil of relay RZB is also energized. When the holding coil of "Rl'9---becomes effective, it acts to close contacts Rl9b so that the low speed clutch magnet LS is operated as follows: line 320, wire 4l5, contacts'RlBb, normally closed lower contacts R341), normally closed contacts I-IS4a, magnet LS and wire 4I5 to line 32 l. The operation of the clutch magnet'causes the feed connections to be established to the pin feed wheel so that the tape is advanced.

The tape is moved until the initial feed control perforation is encountered by the first sensing brush BI, and then a tape stopping circuit is established through the brush to hold the tape at the starting position. The circuit may be followed-from line 320, through wire 4l5, circuit breakers 295, 296, common brush Bl3,'through the: conductive drum 23! and the hole It (Fig. 10) in the tape TP to brush BI, through wires 455 and 425, lower contacts R20d now closed by relay R20, wire 422, contacts Rl9d, relays HS4 and HSI, wire M6 and line 32!. Relay HS4 then operates to open the contacts H840. already mentiened as being in series with the clutch magnet LS and, when these contacts open, the clutch magnet is deenergized to terminate the tape feed.

The other control relay HSI. operates to open the contacts HSla already mentioned as being in -series with the holding coil of relay RIS and, when they are opened, both relays R19 and R20 are deenergized. Control relays HSI and BS4 are deenergized by the opening of circuit breakers 295 -and29fi which operate by the time that the platen clutch is latched upon the termination of the advancement of the tape.

--As the restoration movement of the tape is taking place, the overflow control perforation, whichis sensed by brush BI i, is used to set up the relay RM which closes contacts R4|a in series with all of the tape brush relay contacts. The circuit for picking up relay R4! is made up with line 320, wire 415, breaker contacts 295,. 295, common brush Bl3, cylinder 23!, through the overflow controlperforation in tape TP, brush Bl I, wire-462, switch S20, relay contacts HSSa, the pickup coil of relay R41, wire M6 and line 32!. A holding circuit (not shown) is also provided for relay R4! and maintains this relay energized unless a form skipping operation is performed, as explained in the parent case now issued as Patent 2,531,885, dated November 28, 1950. .Since no form skippingis described in this specification, it will be assumed for present purposes that relay R4! is continuouslyenergized in view of the tape restoration cycle initiated immediately after closing the main switch, as noted above. It might be noted, however, that incase axform skipping operation had takenplace and the holding circuit for relay R4! thus deenergized, relay R41 would again be energized at the end of the form skipping operation through the use of an overflow control perforation in the tape TP, as just described.

Brush Bl2 is provided to sense tape perforations calling for unusual line spacing arrangements. The ordinary one, two or threeline spaces between printing lines is selected by operation of switch lever L (Fig. 11) to connect with either of the three brushes B13, BM, or B45, but if some other unusual line spacing arrangement. is

desired, then the tape is perforated in alignment with'b'rush B12 to getsuch spacing control.-v

Brush BI3 is used at all times as acommon contact member in association with a conductive part of the tape carrying drum23l. It conveys impulses for all tape feeding controLin addition to the use for single line spacing control.

Line spacing control As an accompaniment to every printing operation, it is desired to effect controls for line spacing the record strip and also for advancing the control tape to move in synchronism therewith. Qn every printing operation the PM cam contacts are operated and certain of these are devoted to control for line spacing in series with wiring leading to the pickup coil of relay RIB, which, it will be'remembered, controls selection of the low speed clutch magnet LS. These three PM cam contacts are timed differently to control the time that the line spacing operation takes place with respect to printing. The PM cam contacts are closed at a time while the type bars are moving upward and thereby cause an advance of the platen before printing takes place. Therefore, .spacing which is controlled by the PMH cam contacts is referred to as upstroke spacing. The other two cam contacts PM) and PMIZ are timed to close when the type .bars are moving downward after printing has taken place. The spacing accompanying control by contacts PM) is referred to as downstroke spacing accompanying the restoration of the printing bars. Contacts PMIZ are used for space skipping and are efiective wherever a tape brush is selected for what is usually a plural line movement of predetermined length.

'The operation of line spacing is-not only affected by the timing of the PM cams but it is also influenced by. the setting of a switch for listing or tabulating operation. When the switch is set for listingcontrol there is an upstroke spacing operation on every listing cycleand on every'totaling cycle. 'For final total cycles there is an upstroke spacing operation for the first and second total printing cycles.

When the switch is set for tabulating control there is an upstroke spacing operation on group indication cycles and also on intermediate and major total printin cycles. *For final total control when set for tabulating there is upstroke spacing control fcrthe first and second total cycles.

Downstroke spacing accompanies every total taking cycle when the switch is set for listing. When the switch is. set for tabulating there is a downstroke spacing operationafter every major total recording, and upon the printing of final totals thereis a .downstroke space after the second total cycles.

The timingof the line space control impulses is made accurate with respect to the tape feed because the circuit breaker wheels 285, 286, Figs. 7 and 8,, aregeared directly to thetape feeding drum 2'38 and proportioned to turn one revolution for." each cycle of 1 the. pin feed. Wheels'285: and 286. have teeth for operating the breaker contacts 295,296 to close 24 times in. each cycle of operation ofthe tape feed wheel and coinmutatorzcylinder2-4l, Fig. 11. When operating for-single line spacing-the impulse through contacts 295 and-296 is used directly to terminate spacing. For multiple line spacing, the second or third closurepfcontacts-295 and 296 creates an impulse passing through the commutator seg- 17 i'rients 2420 or 242 to stop the feed of the platen after two or three line spaces of movement. For space skipping, when the length of feed is determined by the location of a perforation in the tape TP, circuit breakers 295 and 296 also govern the time that the impulse is sent through the tape brush, for they are adjusted to close after each possible perforation position is at the brush line and thereby prevent sparking at the tape.

The common commutator segment 242a is normally positioned to be slightly advanced beyond the brushes B14 and BIB, so that when feeding is initiated they make no contact until segment 2420 or 242 are encountered.

Line spacing-Upstroke Whenever a group indication or listing cycle is taken, a. circuit is initiated to start the platen moving for line spacing. This circuit connects wire 439 to line 320, and thus energizes relay Rl9.

Relay R19 then closes contacts Rl9b in series with the low speed clutch magnet LS. The circuit for starting the rotation of the platen follows a path through line 320, wire 4l5, contacts Rl9b, lower interlock contacts R3412 closed as soon as the feed unit is made effective, normally closed contacts HS4a, magnet LS and wire 416 to line 32 l.

After the platen has been turned through an arc equal to one line space, the circuit breakers 295 and 296 close to send an impulse through relays for disabling the clutch magnet LS. The line spacing stop circuit is as follows: line 320, wire 415, circuit breakers 295 and 296, switch L set to select single spacing, wire 420, the normally closed left contacts R321), the normally closed series of brush relay contacts Rl02b to Ri20b inclusive, wire 42!, normally closed relay contacts R411; and R200, wire 422, relay contacts Rl9d, control relays I-IS4 and HSI, and wire M6 to line 32!. Relay H84 acts to terminate the line spacing operation by opening the contacts HS4a in series with the clutch magnet LS. The spacing control relay RIB is also deenergized by the operation of relay HS! which opens contacts HS I a in series with relay R l 9.

Referring to Fig. 2, it is seen that the operation of line spacing is made definite with regard to location of the record strip by operation of the detenting lever I16 which is coordinated with the energization and deenergization of clutch magnet LS, so that the pointed end ll! of the lever cooperates with the teeth I18 of the locating wheel 109, which is geared directly to the platen shaft.

When the switch L (Fig. 11) is set to select a double spacing operation, the stopping circuit is almost the same as that already traced for stopping after single line advancement, the only difference being that the impulse from the circuit breakers is directed through brush Bl3 and through the conductive feeding drum 23l and over to one of the commutator spots 242.0 which cooperates with the brush BI4 after a movement equal to two spaces. The c rcuit continues through the brush B14 down to the second switch terminal now engaged by lever L and then continues through the wire 420 and over to the high speed interrupting relays H84 and HSI as explained in the foregoing discussion of line space stopping.

When the connections are established for tri le spacing. the stopping c rcuit is the same as that for double spacing with the exception that the 18 brush B5 is switched into the stopping circuit and is effective when encountering one of the commutator spots 242 which are spaced around the periphery of the commutator at distances equivalent to movement of three line spaces on the strip.

While there have been shown and described and pointed out the fundamental novel features of the invention as applied to a preferred embodiment, it will be understood that various omissions and substitutions and changes in the form and details of the device illustrated and in its operation may be made by those skilled in the art, without departing from the spirit of the invention. It is the intention, therefore, to be limited only as indicated by the scope of the following claims.

What is claimed is:

1. In a device for controlling the feed of a record strip, a platen for supporting said strip, a main operating means, a clutch between said platen and said operating means, a magnet for operating said clutch, means for energizing said magnet to initiate line spacing, a pair of circuit breaker ratchet wheels, gearing between said wheels and said platen to synchronize them, a set of contacts operated by said wheels to close after each line space movement, a relay with circuit connections to said contacts, and means under control of said relay for deenergizing said magnet to declutch the platen after a line space movement.

2. In a machine for recording on a record strip, a feeding means for said strip, a main operating means, a clutch between said operating means and said feeding means, a magnet for operating said clutch, means for sending a line space control impulse through said magnet to operate said clutch and drive said feeding means, circuit breakers operated by said feeding means each time said strip moves a line space, a slip ring movable with said feeding means, a commutator movable with said slip ring and said feeding means and having commutator segments regularly spaced therearound with each electrically connected to said slip ring, a first brush engaging said slip ring and a second brush engaging said commutator, a relay, a switch for alternatively connecting said relay in series with said circuit breakers and with said brushes and said circuit breakers, and means under control of the relay for deenergizing said clutch magnet, whereby when said switch connects said relay in series with said circuit breakers alone, said clutch magnet is deenergized after each strip movement of a single line space whereas when said switch connects said relay in series with said circuit breakers and said brushes, said clutch magnet is deenergized after each strip movement of a plurality of line spaces predetermined by the spacing of said commutator segments.

The following references are of record in the file of this patent:

UNITED STATES PATENTS Name Date Daly May 2, 1944 Number 

